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NI USB-6008/6009 User Guide and Specifications 24 ni.com
Reference and Power Sources
The NI USB-6008/6009 creates an external reference and supplies a power
source. All voltages are relative to COM unless otherwise noted.
+2.5 External References
The NI USB-6008/6009 creates a high-purity reference voltage supply for
the ADC using a multi-state regulator, amplifier, and filter circuit. You can
use the resulting +2.5 V reference voltage as a signal for self test.
+5 V Power Source
The NI USB-6008/6009 supplies a 5 V, 200 mA output. You can use this
source to power external components.
Note While the device is in USB suspend, the output is disabled.
Specifications
The following specifications are typical at 25 °C, unless otherwise noted.
Analog Input
Converter type ........................................Successive approximation
Analog inputs..........................................8 single-ended, 4 differential,
software selectable
Input resolution
NI USB-6008...................................12 bits differential,
11 bits single-ended
NI USB-6009...................................14 bits differential,
13 bits single-ended
Max sampling rate (aggregate)
1
NI USB-6008...................................10 kS/s
NI USB-6009...................................48 kS/s
AI FIFO ..................................................512 bytes
Timing resolution ...................................41.67 ns (24 MHz timebase)
1
System dependent.